Sudoku Classic Now Supports Trading Cards!
Thank you for enjoying Sudoku Classic. On September 24, 2026, Sudoku Classic added support for trading cards. We hope you'll give collecting them a try!
Sudoku Classic
Customizable Sudoku with the feel of writing with a pen on paper and the ease of playing a video game.It's a game, but you can play it as if you were writing with a pen on a piece of paper.You can customize the assist function to your liking.
CasualIndie
Customizable Sudoku with the feel
of writing with a pen on paper
and the ease of playing a video game.
It's a video game, but you can play it as if you were writing with a pen on paper.
You can customize the assist functions to your liking.
* Customize the assist functions and play with the settings you like.
Customize the assist functions to play with the settings you like.
We wanted to retain the feel of playing with pen and paper, but make it easier to play...!
...and other assist functions you can turn on/off any way you like.
*The game can be played anytime, anywhere, even if it takes a long time.
* Touch controls are supported.
Touch controls make it easy to play casually like you would on a smartphone app.
* There are a total of 300 problems in EASY, NORMAL, and HARD difficulty levels.
There are 300 problems in three difficulty levels: EASY, NORMAL, and HARD.
of writing with a pen on paper
and the ease of playing a video game.
It's a video game, but you can play it as if you were writing with a pen on paper.
You can customize the assist functions to your liking.
* Customize the assist functions and play with the settings you like.
Customize the assist functions to play with the settings you like.
We wanted to retain the feel of playing with pen and paper, but make it easier to play...!
...and other assist functions you can turn on/off any way you like.
*The game can be played anytime, anywhere, even if it takes a long time.
* Touch controls are supported.
Touch controls make it easy to play casually like you would on a smartphone app.
* There are a total of 300 problems in EASY, NORMAL, and HARD difficulty levels.
There are 300 problems in three difficulty levels: EASY, NORMAL, and HARD.
Community Activity
Sudoku ClassicSteam announcement- Sudoku ClassicSteam announcement
Sudoku Classic Passes SteamDeck Compatibility Review!
Thank you for enjoying Sudoku Classic. On May 26, 2026, Sudoku Classic passed SteamDeck compatibility review and was confirmed to run smoothly on Steam Deck. Thank you very much…
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